Here you go, Don't quote me on it as i haven't tried it.
The positive connection (green with a lilac stripe) has to go into pin 26 on the passenger side electric window connector, the earth wire (brown with a blue stripe) has to go to ground, before connecting the led a simple way to test this is to put a wire into pin 26 and connect a multimeter to it , when you arm the alarm there should be a constant or flashing 12v supply when armed!!